Vibrator



FIG. 1 is a perspective view of a vibrator with the ornamental design;

FIG. 2 is a front side view of the vibrator of FIG. 1, with the rear,left and right view being the same as the front side view;

FIG. 3 is a top view of the vibrator of FIG. 1; and,

FIG. 4 is a bottom view of the vibrator of FIG. 1.

The areas shown within the broken lines represent portions of thevibrator which form no portion of the claimed design.

CLAIM The ornamental design for a vibrator, as shown and described.